#include <iostream>

int main(int argc, char const *argv[])
{
    int a[] = {1,2,3,4};
    
    std::cout << sizeof(a)/sizeof(int) <<std::endl;
    std::cout << std::cend(a) - std::cbegin(a) << std::endl;
    std::cout << std::size(a) << std::endl;
    return 0;
}
